Carpet-renovator.



PATENTED AUG. 16, 1904:.

M; H. GOLLOM.

CARPET RENOVATOR. "APPLIOA'TIQNgFIL ED JAN. 13, 1903.

2 bums-mum 1.

- y No Menu;

P ATENTED AUG. 16, 1904.

M. H. GOLLOM. CARPET RENOVATOR.

APPLICATION FILED JAN. 13, 1903.

2 BHEETBSHEBT 2.

N0 MODEL.

UNITED STAT S Patented August 16, 1904.

PATENT OFFICE.

MARTIN H. COLLOM, OF DENVER, COLORADO, ASSIGNOR OF ONE-HALF TO NATHANIEL MAXCY TABOR, OF DENVER, COLORADO.

CARPET-RENOVATOR.

SPECIFICATION forming part of Letters Patent No. 767,630, dated August 16, 1904.

Application fil d January 13, 1903. Serial No. 138,847. (No model.)

such as will enable others skilled in the artto which it appertains to make and use the same, reference being had to the accompanying drawings, and to the figures of reference marked thereon, which form a part of this specification.

My invention relates to improvements in carpet-renovators.

The object of my invention is, first, to provide a renovator in which heated air is used as a cleaning'agent; second, to provide means for heating the air; third, to provide an airdischarge nozzle that automatically adjusts itself to stand at an angle in the direction in which the carpet-renovator is moved; fourth, to provide for collecting the dust in receptacles removably secured within the renovator, so that the renovator may be quickly and easily emptied.

l attain these objects by the mechanism illustrated in the accompanying drawings, in Which Figure 1 is a side elevation of my improved carpet renovator and cleaner. Fig. 2 is a central transverse sectional view. Fig. 3 is a central longitudinal view. Fig. i is a perspective viewof the heating-chamber detached. Fig.

. 5 is a plan view of a portion of the handle,

showing the air-hose connected thereto. Fig. 6 is a perspective view of one of the dust-receiving drawers. Fig. 7 is a perspective view of one of the spring-catches which hold the rods upon which the fabric cover of the renovator is supported. Fig. 8 is a view of a fragment of the fabric cover, and Fig. 9 is a View of a modified form of supporting-rod.

Referring to the accompanying drawings, the numeral 1 indicates the casing, which is substantially of the form illustrated and comprises side walls 2 and 3, ends 4:, which are considerably lower than the sides, and a bottom 5, which has an opening 6 of suitable width and which extends centrally of the bottom from one of the sides to the other, The upper portion of each of the sides 2 and 3 is preferably semicircular in form and is scalloped, as shown at 2, and an outwardly-projecting flange 3 is formed on the scalloped edges, so as to conform to the convolutions of the same, this flange forming a bearing-surface for a purpose to be hereinafter described. The bottom edge of each side wall is also provided with an outwardly-turned flange 3 which extends the whole width of the wall and is designed to rest squarely upon the carpet. This flange is of suflicient width to form a suitable bearing-surface which will not cut or mark the carpet as the I'enovators move over the same. A portion of the bottom 5 contacts with the carpet on each side of the opening 6, as shown at 5, the remainder of the bot-tom being raised, so as to be out of contact with the carpet, Thus the flanges 3" of the sides and the portions 5 of the bottom are the only parts which rest upon-the carpet, this construction presenting a small contacting area, and thereby reducing the amount of frictionsurface. One (or both) of the sides is detachably secured, and each side is provided with a circular opening 7. which form bearings for a cylindrical heating-chamber 8, located within the casing 1 and which has an oscillating movement as the renovator is moved backward and forward across the floor. v

WVithin the casing and extending upward from each side of the opening 6 is a substantially semicylindrical wall 9, each of which is concentric with a heating-chamber 8 and extends from one side of the casing to the other. The space between the walls 9 and the heatingchamber forms flues or passages 10, up which the dust will be blown, as will be more fully hereinafter described.

Between each of the semicircular walls and the end of the casing is located a dust-drawer 11, each of which is slid in through an open ing in one of the side walls and is in like manner withdrawn for the purpose of discharging the dust collected the-rein.

The heating-chamber comprises an outer cylindrical chamber 12 and an inner cylindrical chamber 13, a suitable space being left between them. The inner chamber is also slightly shorter than the outer chamber, so that at one end a space is left between it and the outer chamber which will form additional air-space and will prevent the heat which is driven in that direction from heating the side walls of the casing. A thimble 14 connects the two cylindrical chambers at this end, and the outer chamber is provided with a trunnion 15, which bears in the opening 7 in the side wall 2. At the opposite end of the heater the chambers are flush, and a head 16 serves for both. A cap 17 is screwed into this head, so as to be in the axial center of the inner chamber, and this cap is provided with a trunnion 18, which bears in the opening 7 of the side Wall 3. The cap 17 is provided centrally with a circular opening, through which one end of an ordinary gasolene-burner 19 extends. The remainder of the burner extends a suitable distance within the inner chamber. An annular shoulder 20,formed on the burner, rests against the inner side of the cap 17, and the outwardlyprojecting end of the burner is threaded and receives a cap 21, which'when screwed upon the end of the burner will hold the same in place within the inner chamber. A longitudinal depression 22 is formed in the lower side of the outer chamber, and a corresponding depression is also formed in the inner chamber,

- so that the air-space between them will not be the opening 26 in the side wall.

obstructed, and in the depression of the outer chamber is secured a pair of lips 23, which extend the entire length of the chamber and together form an air-nozzle, the mouth 23 of which does not extend beyond the periphery of the said chamber. A hood 24 is formed on thetop of the heating-chamber, which is closed at one end, while its opposite end is left open, as shown at 25, and registers with an opening 26 in the side wall of the casing. A pair of wings or shutters 27 are secured upon the end of the hood, one on each side of its openings, and as the heater oscillates the opening in the hood will register with some part of the opening 26 in the side wall, while the remainder of the opening will be closed'by one or the other or both of the shutters, according to the position of the heater. Both chambers are connected at their upper sides by a thimble 28, which forms a connection between the inner chamber and the hood, as will be seen by reference to Fig. 3, and the cap 21, which is screwed upon the outer end of the burner, is provided with a series of perforations 21. Thus air entering through the perforators in the cap will pass through the burner in to the inner cylinder, thence-through the thimble 28 into the hood and out through A coilpipe 29 is located within the inner-chamber, the coils being preferably close together and the whole extending practically the length of the chamber. One end of this pipe extends through the inner and outer chambers and opens into the air-nozzle, while its opposite end extends up through the thimble 28 into the hood, where it is led to one end of the same and there given a bend and led to the opposite end, where it is again bent and extended back a short distance, where its end enters the outer chamber and opens into the air-space between the two chambers. Thus air under pressure in the space between the chambers passes first into that portion of the pipe which is located in the hood, thence down into the coil and out through the noz- 210. Air under pressure is delivered to the space between the two chambers in the following manner: A suitable distance below the axial center of the outer cylinder and at one end of the same a nipple 30 is screwed into the head and communicates directly with the space between the chambers, a space being left between the ends of the chambers at this end, as previously stated, and at the opposite end and in a corresponding position a nipple 31 is screwed into the cap 17 and into an elbow 32, the opposite end of which passes through the inner chamber and communicates with the air-space between the chambers. To each of these nipples is secured a tubular arm 33, which forms one of the members of the forked portion of the handle by which the renovator ispropelled. Each arm, where it is attached to the nipple, is given an inward bend, and to the extremity of each is revolubly attached a coupler 34 of any preferred type, which is screwed upon the nipple, so as to make an air-tight connection, but at the same time allow the handle to be moved up and down. Each arm 33 has a right-angled member 35, and each of these members is screwed into a T 36, having a threaded socket which receives the end of the handle proper, as clearly shown in Fig. 5. The under side of the T 36 has a threaded opening 37, into which a coupler secured to one end of a hose 38 is screwed, the opposite end of the hose being connected with any suitable source of compressed air. By this arrangement the air passes from the hose into the forked portion of the handle and thence into the airspace between the cylindrical chambers, whence it passes into the coil and out through the nozzle in the manner before described.

A gasolene-tank 39 is located above the renovator and is secured at each end to one of the side walls by brackets-40. A pipe 41 extends from the under side of the tank down one side of the renovator through the thimble 14 and into the inner cylinder, where it passes through the coil 29 to the opposite end of the cylinder. Its end enters the burner at this point and is provided with a suitable valve 42, by which the supply of gasolene may be regulated. A hose 43 extends from the top of .the T 36 and connects with the top of the gasolene-tank. Thus the compressed air enters the tank and forces the gasolene into the burner.

A semicircular deflector 44 is secured to the top of the hood 24 and a suitable distance above the same by pins 45, which as the heating-cylinder oscillates will contact alternately with the top edges of the semicircular walls 9 and limit the movement of the said cylindersin either direction.

The renovator is covered with a fabric covering 46, which will allow the air to escape, but which will 'retain the finer particles of dust carried against it by the force of the air.

This fabric, as shown in Fig. 8, is provided ad acent to each side edge with an elastic cord or band 47 and is secured upon the renovator in the following manner: One end of the fabric is clamped against the end of the reno-- vator by a metal strip 48, and it is then passed over the top of the renovator and secured at the opposite end in the same manner; but in passing from one end to the other the fabric is made to conform to the convolutions of the side walls, so that a greater area will be presented to the escaping air than otherwise. This is accomplished by passing the fabric over and under a series of rods 49, which extend from one side wall to the other and rest within semicircular recesses formed in the edges of the same. The scalloped edges of the side walls are such that a series of projections are formed in the apexes of which the outer set of rods lie, while the inner set of rods lie in recesses between the projections.

' The outer set of rods will be held in place by the fabric which passes over them; but as the fabric passes under the inner set of rods a pull is exerted upon them, and they are therefore held in place by spring-catches 50, which are secured to the side walls and are provided with holes 51 in their upper ends through which the ends of the rods pass. The edges of the fabric having the elastic band will'rest upon the flange 3 of the scalloped edges and will hug the same so tightly as to prevent the escape of dust. In Fig. 9 I have shown a modification of the rod, wherein the same is bent in zigzag manner, and the fabricresting upon it would present a still larger area to the escaping air.

The operation of the improved renovator is as follows: The gasolene is ignited at the burner and quickly heats the coiled pipe within the heating-chamber, as well as the chamber. As the compressed air enters the airspace between the inner and outer cylindrical casing comprising theheating-chamber it is partially heated, and as it passes from. the air-spaceinto and through the coil it becomes heated to the required degree and passes out through the nozzle against the carpet, where it not only removes the dust, but thoroughly cleanses the carpet, removes grease-spots, and destroys germs. As the renovator is pushed chamber and the force will be received by the deflector, which will deflect the heavier particles of dust into one orboth'of the dustdrawers, while the lighter particles will be caught by the fabric cover, which will also permit the air to escape.- The movement of the heating-chamber is eifected by the push'and pull on the handle, which is attached to the chamber at a point below its axial center.

While I have illustrated the preferred construction of heating mechanism and its position in the casing, I reserve the right to change its position and construction as desired.

Having described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. A carpet-renovator comprising a casing open at the top and bottom, a cloth through which the air can escape, forming a cover over the top of said casing, dust-chambers within said casing, an air-nozzle adapted to discharge compressed air toward the bottom of said casing, and means in connection with said nozzle for heating the compressed air, substantially as described.

2. In a carpet-renovator, a casing adapted to rest on a carpet and provided with an opening in its bottom, an air-supply pipe operatively connected to deliverair under pressure against said carpet in said opening in said casing, and means for heating said supply of air.

'3. In a carpet-renovator, a cylindrical casing having an opening in its bottom, a hollow forked handle, operatively connected to the opposite sides of said cylindrical casing, a supply-pipe for air under pressure connected to said forked handle, a hollow drum, means for heating the air, a suitable nozzle for discharging the heated air at a' slight angle against the carpet in the direction the casing is moved, means for collecting the dust and means for screening the air, substantially as described.

4.. In a carpet-renovator, a casing having an opening in its bottom, a heater mounted in said casing, a hollow forked handle, having each end of said forked portion secured to said heater, and a supply-pipe for compressed air connected with said forked handle, substantially as described.

5. In a carpet-renovator, a casing providedwith a flat bottom portion having an opening therein, acylindrical heater pivotally mounted: in said casing and arranged to normally rest on the carpet at a predetermined point in its periphery, a nozzle in the periphery of said heater, a coiled pipe in said heater communieating at one end with said heater and at the other end with said nozzle, a hollow forked handle pivotally connected with said heater and in communication with the interior thereof, a supply-pipe for compressed air communicating with said handle, and means for heating said air as it flows through said heater and coil, substantially as described.

6. In a carpet-renovator, a casing having an opening in its bottom and adapted to rest and be reciprocated on a carpet, an air-discharging nozzle mounted in said casing, a dust-passage on each side of said nozzle leading to the top of said casing, a suitable screen for discharging the spent air from said casing, a deflector for guiding the dust to the bottom of the ends of said casing, a hollow handle connected to said casing, means for conveying a supply of compressed air through said hollow handle to said nozzle, and means for heating said compressed air before it is discharged against a carpet from said nozzle, substantially as described.

7. In a carpet-renovator, a casing provided with an opening and adapted to be reciprocated over a carpet, a cylindrical member pivotally secured to said casing to oscillate therein and arranged to contact with said carpet, an air-discharge nozzle secured to said cylindrical member adjacent to its points of contact with the carpet and arranged to oscillate therewith, means to cause said nozzle to stand in an angular position to the carpet and in the same direction in which the said casing is being moved over the carpet, and an airsupply pipe operatively connected to said nozzle, substantially as described.

8. In a carpet-renovator, a casing provided with an opening and adapted to be reciprocated over a carpet, a cylindrical heater pivotally secured to said casing and arranged to contact with the carpet, an air-discharge nozzle secured to said cylindrical heater adjacent to its points of contact with the carpet and arranged to stand at an angular position to said carpet and to point in the same direction in which the said casing is being moved over the carpet, an air-supply pipe operatively connected to said nozzle, and means including a burner for heating said cylindrical heater,substantially as described.

9. In a carpet-renovator, a casing provided with an opening and adapted to be reciprocated over a carpet, a cylindrical heater pivotally secured to said casing to oscillate there in and arranged to rest lightly on said carpet at its lower side, an air-discharge nozzle in said cylindrical heater adjacent to its point of contact with the carpet and arranged to oscillate with said cylindrical heater, said nozzle being arranged to stand in an angular position to the carpet and in the same direction in which the said casing is being moved over the carpet, a coil of pipe within said heater connected at one end to said air-discharge nozzle, and having its opposite end connected to said cylindrical heater, a hollow forked handle operatively pivoted to opposite ends of said cylindrical heater, an air-supply pipe operatively connected to said handle, and a burner for heating said cylindrical heater and coil, substantially as described.

10. In a carpet-renovator, a casing having an opening in its bottom and through its top, the sides having scalloped terminal edges and a fabric cover attached to the casing in such a manner as to form a fluted surface, substantially as described.

11. In a carpet-renovator, a casing having an opening in its'bottom; substantially semicylindrical walls, one of which rises from each side of the opening, a space being left between the two walls at the top; a cylindrical heating chamber, located between the two walls and above the opening, and having a bearing at each end, in the casing, a deflector located outside the walls and secured to the heating-chamber, a handle having a tubular forked portion, the members of which are attached to the heating chamber below the point of its axial center; a hose connecting the handle with a source of compressed air; a nozzle attached to the under side of the heating-chamber which communicates with the interior thereof; the said handle, when pushed or pulled, causing the chamber to oscillate so that the nozzle will deliver the air in the direction of movement of the renovator; means for heating the air before it passes out through the nozzle, substantially as described.

12. In a carpet-renovator, a casing having an opening in its bottom extending lengthwise of the same, a cylindrical heater, comprising an inner and outer, chamber, said heater being designed to oscillate within the casing above the opening, so that its periphery shall contact with the carpet; a nozzle secured to the bottom of the heater; a coiled pipe located within the inner chamber of the heater, one end of which communicates with the nozzle, while the other end opens into the space between the chambers, a handle having a tubular forked portion, the members of which are attached to the heater below the point of its axial center, and communicate with the airspace between the chambers; a hose connecting the handle with a source of compressed air; .means located within the inner chamber for heating the air before it passes out through the nozzle; substantially as shown.

13. In a carpet-renovator, the combination with a casing having a longitudinal opening in its bottom, a curved wall on each side of the opening and removable dust-receptacles; of a cylindrical heater comprising an inner and outer chamber, which is located between the walls and is designed to have an oscillating movement, its periphery contacting with the carpet; a deflector attached to the top of the heater; a nozzle secured to the bottom there- 'of; a coil of pipe located Within the inner chamber, one end of which connects with the nozzle, while the other end connects with the space between the chambers; a handle having a tubular forked portion, the members of which are attached to the heater below the point of its axial center and so as to communicate with the space between the chambers; the connection of the handle below the pivotal point of the heater causing the same to oscillate when the handle is pushed and pulled, so that the nozzle will deliver the air obliquely and in the direction of the movement of the renovator; means for connecting the handle with a source of compressed air;

means for heating the air before it escapes through the nozzle; substantially as described.

- 1 L. In a carpet-renovator, a casing having an opening in its bottom' and. curved walls which extend up a suitable distance, one on each side of the opening; side and end walls, the edges of said side Walls at the opening through the top of said casing formed into scallops and means for securing a suitable cloth or fabric to said scallops, substantially as described.

In testimony whereof I afiix my signature in presence of twowitnesses.

MARTIN H. COLLOM. Witnesses:

JOHN J. HERNAN,

CHARLES F. BRYDEN. 

